Through the transcriptome sequencing analysis of saline alkali tolerant‘Changbai 9’under different sa-line alkali stress, differences of expression gene and expression patterns under different saline alkali stress were pre-liminary studied in the paper. At the same time, all the up-regulated genes under two saline alkali treatment wereannotated. The results showed that when‘Changbai 9’was under saline alkali stress, some proteins and enzymes ofosmotic adjustment showed upward trend, these genes may be involved in the‘Changbai 9’salt tolerance process.